The following changes are made to the clock API:
* The concept of "clocks" and "peripheral clocks" are unified; each clock
  provider now implements a single set of clocks. This provides a simpler
  conceptual interface to clients, and better aligns with device tree
  clock bindings.
* Clocks are now identified with a single "struct clk", rather than
  requiring clients to store the clock provider device and clock identity
  values separately. For simple clock consumers, this isolates clients
  from internal details of the clock API.
* clk.h is split so it only contains the client/consumer API, whereas
  clk-uclass.h contains the provider API. This aligns with the recently
  added reset and mailbox APIs.
* clk_ops .of_xlate(), .request(), and .free() are added so providers
  can customize these operations if needed. This also aligns with the
  recently added reset and mailbox APIs.
* clk_disable() is added.
* All users of the current clock APIs are updated.
* Sandbox clock tests are updated to exercise clock lookup via DT, and
  clock enable/disable.
* rkclk_get_clk() is removed and replaced with standard APIs.

Buildman shows no clock-related errors for any board for which buildman
can download a toolchain.

test/py passes for sandbox (which invokes the dm clk test amongst
others).

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Simon Glass <sjg@chromium.org>

For consistency with the other cache-related Kconfig entries & the
values actually set by boards, make CONFIG_SYS_DCACHE_LINE_SIZE an int
entry instead of a hex entry.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Fixes: 372286217f05 ("MIPS: Split I & D cache line size config")

Commit fb64cda57998 ("MIPS: Abstract cache op loops with a macro")
accidentally modified invalidate_dcache_range to operate on the L1
Icache instead of the Dcache. Fix the cache op used to operate on the
Dcache.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Fixes: fb64cda57998 ("MIPS: Abstract cache op loops with a macro")

Add AR933X_PLL_SWITCH_CLOCK_CONTROL_REG define for ar933x chip.

Signed-off-by: Wills Wang <wills.wang@live.com>

Add code to ungate USB and ethernet controller on qca953x

Signed-off-by: Wills Wang <wills.wang@live.com>

This patch enable network function for ap121 board.

Signed-off-by: Wills Wang <wills.wang@live.com>
Acked-by: Marek Vasut <marex@denx.de>

Add a platform prefix for function name in order to make more readable,
and move it into ath79.h

Signed-off-by: Wills Wang <wills.wang@live.com>
Acked-by: Marek Vasut <marex@denx.de>

The various cache maintenance routines perform a number of loops over
cache lines. Rather than duplicate the code for performing such loops,
abstract it out into a new cache_loop macro which performs an arbitrary
number of cache ops on a range of addresses. This reduces duplication in
the existing L1 cache maintenance code & will allow for not adding
further duplication when introducing L2 cache support.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>

Allow L1 Icache & L1 Dcache line size to be specified separately, since
there's no architectural mandate that they be the same. The
[id]cache_line_size functions are tidied up to take advantage of the
fact that the Kconfig entries are always present to simply check them
for zero rather than needing to #ifdef on their presence.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
[removed CONFIG_SYS_CACHELINE_SIZE in include/configs/pic32mzdask.h]
Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>

Move details of the L1 cache line sizes & total sizes into Kconfig,
defaulting to 0. A new CONFIG_SYS_CACHE_SIZE_AUTO Kconfig entry is
introduced to allow platforms to select auto-detection of cache sizes,
and it defaults to being enabled if none of the cache sizes are set by
the configuration (ie. sizes are all the default 0), and code is
adjusted to #ifdef on that rather than on the definition of the sizes
(which will always be defined even if 0).

Signed-off-by: Paul Burton <paul.burton@imgtec.com>